Best Radial Velocity

Didier Queloz is a prominent astronomer specializing in the study of exoplanets. His research utilizing radial velocity measurements was instrumental in confirming the existence of 51 Pegasi b, the first planet orbiting a star similar to our Sun. This discovery significantly advanced the field and p...

51 Pegasi b is a gas giant exoplanet orbiting the Sun-like star 51 Pegasi. Its discovery in 1995 marked the first confirmation of an exoplanet around such a star. This “hot Jupiter” planet’s existence was determined through radial velocity measurements, offering scientists a crucial early example fo...

R. Paul Butler is an American astronomer known for developing highly precise radial-velocity methods used to detect planets outside the Solar System. Working with collaborators including Geoffrey Marcy, he contributed to the discovery and characterization of numerous exoplanets by measuring the smal...

Debra Fischer is a modern astronomer specializing in the detection of exoplanets. Her research utilizes radial velocity measurements to identify subtle wobbles in stars caused by orbiting planets. She is particularly notable for her contributions to precision spectrograph development and its applica...

David Latham is an American astronomer who pioneered precise radial velocity techniques and authored hundreds of influential studies on the detection and characterization of exoplanets.

Gliese 581 c is a super-Earth exoplanet discovered in 2007 orbiting the red dwarf star Gliese 581, located about 20 light-years from Earth. Upon its discovery via the radial velocity method, it was considered a candidate for habitability due to its location near the star's habitable zone. However, s...

Teegarden's Star b is a potentially Earth-like exoplanet situated in the habitable zone of the ultra-cool red dwarf star Teegarden's Star. Located approximately 12.5 light-years away from Earth, it was discovered in 2019 by a team led by Mathias Zechmeister using the radial velocity method. The plan...

Tau Boötis b is an exoplanet categorized as a hot Jupiter, orbiting the F-type star Tau Boötis. Discovered in 1996 using the radial velocity method, it was one of the earliest exoplanets found around a sun-like star. The planet is tidally locked to its host star and was among the first exoplanets to...

Ross 128 b is a near-Earth-mass exoplanet orbiting the red dwarf star Ross 128, located approximately 11 light-years from Earth. Discovered in 2017 by a team led by Xavier Bonfils using the HARPS spectrograph, it orbits within the habitable zone of its host star. Astronomers consider it a prime targ...

GJ 667Cc is a super-Earth exoplanet confirmed in 2012, orbiting within the habitable zone of a red dwarf star in the triple-star system GJ 667. Located approximately 22 light-years from Earth, it has a mass at least 3.8 times that of Earth and completes an orbit every 28 days. Its discovery, made us...

HAT-P-11b is a Neptune-sized exoplanet discovered by the HATNet survey, orbiting the orange dwarf star HAT-P-11. It was one of the first small exoplanets to have water vapor successfully detected in its atmosphere, achieved via observations by the Hubble Space Telescope. The planet has a highly ecce...

Gliese 876 b is a giant exoplanet orbiting Gliese 876, a nearby red-dwarf star roughly 15 light-years from Earth. Announced in 1998 from radial-velocity observations, it was among the earliest planets found around a low-mass main-sequence star. It is part of a multiplanet system whose giant planets...

Geoffrey Marcy is an American astronomer who became prominent for pioneering the detection of exoplanets using the radial velocity or Doppler spectroscopy method. During his career as a professor at the University of California, Berkeley, he and his team discovered dozens of the earliest known extra...

Upsilon Andromedae b is a hot Jupiter exoplanet discovered in 1996 orbiting the F-type main-sequence star Upsilon Andromedae A, located approximately 44 light-years from Earth. It was the first planet detected in this system, which subsequently became the first confirmed multi-planet system discover...

Paul Butler is an American astronomer at the Carnegie Institution for Science's Department of Terrestrial Magnetism. He specializes in the detection of extrasolar planets using high-precision radial velocity spectroscopy. By co-developing advanced optical spectrographs and analysis techniques in the...

Stéphane Udry is a Swiss astronomer working at the Geneva Observatory in Switzerland. He is noted for his observational research on exoplanets, utilizing radial velocity measurements to detect distant worlds. As a leader within the High Accuracy Radial Velocity Planet Searcher (HARPS) team, he annou...

HD 80606 b is a gas giant exoplanet orbiting the star HD 80606, which together with HD 80607 forms a binary star system approximately 190 light-years from Earth. Discovered in 2001 through radial velocity measurements, the planet has one of the most eccentric orbits of any known exoplanet, with an e...

Tau Ceti e is a super-Earth candidate orbiting Tau Ceti (~12 ly) near the inner habitable zone edge, announced in 2012 by a team led by Mikko Tuomi.

Epsilon Eridani b is a gas giant exoplanet orbiting the nearby K-type star Epsilon Eridani, located approximately 10.5 light-years from the Solar System. Evidence for the planet was identified through long-term radial velocity monitoring of the star, with results reported around 2000. The planet has...

Beta Pictoris c is a gas giant exoplanet orbiting the young A-type star Beta Pictoris, located approximately 63 light-years from Earth and estimated to be around 23 million years old. The planet was initially detected through radial velocity measurements and was subsequently directly imaged by the G...

47 Ursae Majoris b is a gas giant exoplanet orbiting the Sun-like G-type star 47 Ursae Majoris at a distance of approximately 2.1 astronomical units. Discovered in 1996 through radial velocity measurements, it was among the first known long-period exoplanets orbiting a Sun-like star. The planet has...

55 Cancri b is a gas giant exoplanet orbiting the Sun-like star 55 Cancri (also designated Copernicus), located approximately 41 light-years from Earth in the constellation Cancer. Discovered in 1996 through radial velocity measurements, it has a minimum mass comparable to Jupiter and orbits at appr...

Gliese 876 d is a super-Earth exoplanet orbiting the red dwarf star Gliese 876, located approximately 15 light-years from Earth. Discovered in 2005 through radial velocity measurements, it was among the first super-Earth-mass planets identified around a main-sequence star. The planet has a minimum m...

Gliese 581 d is a super-Earth announced in 2007 in the outer habitable zone of Gliese 581; its existence remains debated, with some studies attributing its signal to stellar activity.

Guillem Anglada-Escude is a Spanish astronomer whose research focuses on detecting and characterizing planets around nearby stars, particularly through radial-velocity measurements. He led the Pale Red Dot campaign that reported Proxima Centauri b in 2016, a planet orbiting the star nearest to the S...

A Saturn-sized transiting hot Jupiter discovered in 2005 around HD 149026, notable for an abnormally massive dense core estimated at roughly 70 Earth masses.

Gliese 581 e is the least massive planet in the Gliese 581 system at ~1.9 Earth masses, announced in 2009; it orbits very close to its host M-dwarf and is far too hot for habitability.

Wolf 1061 c is a confirmed exoplanet orbiting the red dwarf star Wolf 1061, located approximately 14 light-years away from Earth in the constellation Ophiuchus. Discovered in 2015 using the radial velocity method, it has a mass roughly four times that of Earth, classifying it as a super-Earth. The p...

Gliese 876 c is a gas giant exoplanet orbiting the red dwarf star Gliese 876, located approximately 15 light-years away in the constellation Aquarius. Discovered in 2001 using the radial velocity method, it has a mass comparable to Jupiter and completes an orbit every 30 days. The planet is notable...